Interface used to indicate deserializers that want to do post-processing
after construction but before being returned to caller (and possibly cached)
and used.
This is typically used to resolve references
to other contained types; for example, bean deserializers use this callback
to locate deserializers for contained field types.
Main reason for using a callback (instead of trying to resolve dependencies
immediately) is to make it possible to cleanly handle self-references;
otherwise it would be easy to get into infinite recursion.

Note that resolve(com.fasterxml.jackson.databind.DeserializationContext) method does NOT allow returning anything
(specifically, a new deserializer instance): reason for this is that
allowing this would not work with proper handling of cyclic dependencies,
which are resolved by two-phase processing, where initially constructed
deserializer is added as known deserializer, and only after this
resolution is done. Resolution is the part that results in lookups for
dependant deserializers, which may include handling references to
deserializer itself.

Note that in cases where deserializer needs both contextualization and
resolution -- that is, implements both this interface and ContextualDeserializer
-- resolution via this interface occurs first, and contextual
resolution (using ContextualDeserializer) later on.

Method called after deserializer instance has been constructed
(and registered as necessary by provider objects),
but before it has returned it to the caller.
Called object can then resolve its dependencies to other types,
including self-references (direct or indirect).

Parameters:

ctxt Context to use for accessing configuration, resolving
secondary deserializers